Hugo gallinowsky



Patented Sept. 20, I898.

H. GALLINOWSKY. COMPOUND FOR RENDERING SUBSTANCES FIREPROOF (Applicationfiled Jan. 13, 1897) (N0 Model.)

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I-IUGO GALLINOWSKY, OF LONG BEACH, MISSISSIPPI.

COMPOUND FORYRENDERING SUBSTANCES FIREPROOF.

SPECIFICATION forming part of Letters Patent No. 610,964, datedSeptember 20, 1898.

Application filed January 13, 1897. Serial N0. '619,100. (No specimens.)

To aZZ whom it may concern.-

Be it known that I, HUGO GALLINowsKY, a citizen of the United States,residing at Long Beach, in the county of Harrison and State ofMississippi, have invented certain new and useful ImprovementsinCompounds for Bendering Substances Fireproof and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My present invention relates to improvements in compounds for renderingsubstances fireproof, and has for its object the production of such acompound which is both certain in its capacity to resist fire andcomparatively inexpensive.

The said invention further consists of the novel features hereinaftermore fully described.

My improved compound is most effective, I.

believe,when applied as hereinafter described and shown in the drawings,and I therefore prefer to set forth its application, although I make noclaim to the same herein.

Referring to the accompanying drawings, in which similar parts arerepresented by similar letters, Figure 1 represents in perspective viewa piece of timber having one side covered with my improved sheeting, andFig; 2 a perspective view showing the manner in which I propose to applymy sheeting in the construction of fireproof doors and elevatorshafts.

To render a combustible substance fireproof by my said invention, Iproceed as follows: For the sake of simplicity it will be supposed thatthe substance is a piece of board or timber A. First I paint the boardor wall A with a compound composed of magnesium oxid, magnesium chlorid,(saturated solution,) boracic acid, and sal-ammoniac. These ingredientsare mixed in about the following proportions: magnesium oxid, one andone-half pounds; magnesium chlorid, (saturated solution,) one and onefourth pints; boracic acid, a suitable amount, (about onehalf pint,) andsal-ammoniac one-fourth pint. I then thoroughly saturate some fibrousmaterial-such as jute, canvas, cotton cloth, and the like-with the abovecompound and lay the saturated cloth over the painted surface,stretching the same tightly. Then I proceed to lay on one or more layersof the said. cloth in a similar manner on top of the first layer, thegreater the number of layers, obviously, the better the protection; butthree layers have stood the severest tests and been found sufficient. Onthe exposed surface of the top layer of saturated cloth and while thesame is still in awet condition I spread a dry pow der of a substancewhich fluxes easily under heat, as powdered glass, flint-flux, powderedsilica or silicates, and the like, and press this powder into thesurface of the sheeting in any convenient way, as with rollers or with atrowel. The whole being allowed to dry hardens and forms a fireproofcrust or sheeting over the before-exposed surface of the timber. Werethe sheeting alone without the powdered silicates subjected to theaction of fire it would turn the fiames and withstand the heat for quitea while; but with the ad dition of the silicates or other fluxingsubstances a hard crust is formed over the entire heated surface by thecombining of the melting silicates with the free magnesium oxid of theabove-mentioned cement compound.

In the drawings, B represents the sheeting, composed of a plurality oflayers, and b the powdered substance of the surface.

In the application of my invention to the construction of fireproofdoors, elevatorshafts, and roofs I propose to construct them as shown inFig. 2 of the drawings. In this case I interpose between layers ofsheeting B thin pieces of timber A, and while I have only shown twolayers of the latter it is ob vious that the number may be variedaccording to conditions.

It is further obvious that my invention is capable of various othermodifications without departing from the spirit of the invention.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent of the United States, is-- 1. A compound forrendering combustible substances fireproof which consists of magnesiumoxid, magnesium chlorid, boracic acid and sal-ammoniac,substantially asdescribed.

2. The herein-described fireproofing oorn- In testimony whereof I affixmy signature pound which consists of the following ingrein presence oftwo witnesses. dients in substantially the following propor- T T tions,to W117i magnesium oxid one and one- HUGO GALLILOVSKL 5 half pounds,magnesium ehlorid one and one- Witnesses:

fourth pints, boracic acid one-half pint, and W. RUSSELL, J 1

sal-ammoniao one-fourth pint. F. W. GARDEN.

